Sinigang Recipe Vegetarian: Tangy Tamarind Broth With Garden Fresh Veggies

This vegetarian sinigang brings the beloved Filipino sour soup to life without any meat.

The tamarind broth delivers that signature tangy flavor, packed with garden-fresh vegetables like eggplant, okra, and kangkong. Each ingredient soaks up the broth beautifully.

I’ve adapted this version to be completely plant-based while keeping the rich, comforting taste. The tofu adds a satisfying texture that holds up well in the hot, sour broth.

Serve it steaming hot over rice for a hearty, flavorful meal that stays true to tradition.

Ingredients for Sinigang Recipe Vegetarian

Fresh veggies and tofu bring this tangy Filipino soup to life.

The tamarind paste is non-negotiable for authentic flavor. Filipino markets or Asian grocery stores stock it fresh or in jars—avoid the concentrate, it’s too intense. Tofu should be extra-firm to hold its shape; Nasoya or House Foods are reliable brands. Kangkong (water spinach) is traditional, but baby bok choy works if you can’t find it.

No tamarind? Guava paste or unripe mango can mimic the sourness in a pinch. Out of kangkong? Spinach or Swiss chard are fine substitutes. The daikon adds a nice crunch, but regular radishes or turnips work too. For extra umami without fish sauce, try a dash of soy sauce or mushroom powder.

This soup actually tastes better the next day once the flavors meld. Keeps for 3-4 days in the fridge—just reheat gently. Freezes well for up to 2 months if you leave out the kangkong (add it fresh when reheating).

Step-by-Step Instructions for Vegetarian Sinigang

Here’s the method I use to build layers of tangy, savory flavor in this classic soup.

Step 1: Create the Tamarind Broth Foundation

In a large pot, combine the 6 cups vegetable broth with the 0.5 cup tamarind paste. I whisk vigorously until the paste dissolves completely into the liquid, creating that signature sour base we’re after.

Bring the mixture to a gentle boil over medium-high heat, then reduce to a simmer. This is where the magic starts—the tamarind’s natural pectin will thicken the broth slightly as it cooks. Add the 1 tbsp fish-free seasoning and 1 tsp salt now to build your flavor foundation early.

Step 2: Layer in the Hearty Vegetables

Add the daikon radish slices and 1 whole eggplant cut into rounds to the simmering broth. These dense vegetables need time to absorb the tangy liquid and become tender. I like to keep the eggplant skin on for texture and color contrast.

After 5 minutes, add the 1 whole red onion sliced thinly and 2 whole tomatoes quartered. The tomatoes will break down slightly, adding natural sweetness that balances the tamarind’s sourness. Simmer for another 5 minutes until the daikon starts to soften at the edges.

Step 3: Incorporate the Delicate Ingredients

Now add the 14 oz firm tofu pressed and cubed and 8 pieces okra trimmed. The tofu will soak up the broth like a sponge, so add it now to maximize flavor absorption. I press my tofu for at least 30 minutes beforehand to ensure it holds its shape in the soup.

The okra will release some of its natural mucilage, which actually helps thicken the broth slightly. Don’t stir too vigorously at this point—gentle movement prevents the okra from breaking apart. Simmer for 3-4 minutes until the okra brightens in color.

Step 4: Finish with Greens and Final Adjustments

Stir in the 2 cups kangkong chopped and 2 pieces long green chili (if using). The water spinach wilts quickly—you’ll see it collapse into the broth within 1-2 minutes. This is your signal that the dish is nearly done.

Taste and adjust seasoning if needed. The tamarind should be prominent but not overpowering, with the vegetables offering their own distinct textures. The daikon should be fork-tender, the eggplant silky, and the tofu infused with that signature sinigang tang. Serve hot with steamed rice to soak up every last bit of broth.

Essential Equipment for sinigang recipe vegetarian

Large Pot Selection

I always use a 5-6 quart heavy-bottomed pot—like my Le Creuset Dutch oven—to ensure even heat distribution. The soup needs room for all those veggies to simmer comfortably without overcrowding. A pot with a tight-fitting lid helps maintain the perfect simmer. 🔥

Wooden Spoon Essential

A long wooden spoon is my go-to for stirring the tamarind broth. It won’t scratch your pot and gently moves the delicate vegetables without breaking them apart. I avoid metal spoons that can react with the acidic tamarind.

Tofu Press Tool

For the best texture, I use a tofu press to remove excess water from the 14 oz firm tofu. If you don’t have one, wrap the tofu in a clean towel, place a heavy pan on top, and press for 30 minutes. EZ Tofu Press is my favorite affordable brand.

Fine Mesh Strainer

If your tamarind paste has seeds or fibers, strain the broth through a fine mesh strainer before adding vegetables. I use OXO’s 7-inch strainer—it fits perfectly over my pot and catches all the bits while letting the smooth, tangy liquid through.

Sharp Chef’s Knife

You’ll need a good knife for all the veggie prep. I swear by my 8-inch Wüsthof for slicing the daikon radish and eggplant. A sharp blade makes quick work of the prep and ensures clean cuts that look as good as they taste.

Ladle for Serving

A large ladle is perfect for serving this soup over rice. I prefer one with a long handle, like RSVP’s stainless steel ladle, to reach deep into the pot. The broth is the star here, so make sure every bowl gets plenty of that tangy liquid. 💛

Frequently Asked Questions